Latest / Pharmacy Podcast Network / Hey Pain, Sad to See You Go! (A Review of Adjuvant Pain Medications) | Pain Pod
Transcript
- 0:05Speaker 1: You are listening to the global network of podcasters dedicated
- 0:09Speaker 1: to the pharmacy profession. Welcome to the Pharmacy podcast Network.
- 0:22Speaker 1: This is the Pain Pod. You want to see pain
- 0:27Speaker 1: look at me.
- 0:34Speaker 2: Welcome to the Pain Pod, the podcast for all things
- 0:39Speaker 2: pain management, hosted by the pain Guy.
- 0:43Speaker 1: Doctor Mark grow.
- 0:48Speaker 2: We'll be collaborating with numerous pain management experts, talking about
- 0:52Speaker 2: substance usage disorders, the latest treatment modalities, and the most
- 0:57Speaker 2: important important focusing on the pain of our patients as.
- 1:01Speaker 1: Leading providers of pain care.
- 1:05Speaker 2: And now here's our host, a man wanted in all
- 1:09Speaker 2: fifty states, a suburban city like mountain man without the beard,
- 1:16Speaker 2: from the hills of West Virginia and certified in weapons.
- 1:21Speaker 1: Of mass destruction.
- 1:22Speaker 2: Response Yes, doctor Mark Holby.
- 1:32Speaker 3: All right, all right everyone, welcome back to the Pain Pod.
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- 1:40Speaker 3: come all to the Pain Pod, and here you are,
- 1:42Speaker 3: so welcome back pain pod Nation.
- 1:45Speaker 1: Well here we are with this episode today. Hey pain
- 1:49Speaker 1: sad to see you go. Basically we'll be reviewing ed
- 1:53Speaker 1: you even pain medications really highlighted by antidepressants, but you
- 1:57Speaker 1: know the rest of the gang as well. So tried
- 2:00Speaker 1: to come up with saying there of well, typically not
- 2:03Speaker 1: sad to see the pain go, but has to do
- 2:06Speaker 1: something in the realm of antidepressants. Right, So as we
- 2:10Speaker 1: you know, review our adjuvenant pain medications, keep in mind
- 2:15Speaker 1: the list be long. It's a laundry list of medications.
- 2:18Speaker 1: It's basically the you know, the gang that doesn't fit
- 2:19Speaker 1: into the other things, right, the non opioids, the opioids
- 2:22Speaker 1: of course, but now we jump into our adjuvants. You know,
- 2:26Speaker 1: things like I mentioned the antidepressants, whether it's the TCAs S,
- 2:30Speaker 1: n ries A, b SSRI's more to come on that,
- 2:34Speaker 1: you know, the the the outliers, bupropion, mertazepine, you know,
- 2:38Speaker 1: even jumping classes here to alpha two agnis primarily with chlanidine.
- 2:44Speaker 1: Then the infamous quote unquote muscle relaxing is much more
- 2:48Speaker 1: to come on that here in a hot second, the benzos,
- 2:50Speaker 1: the gap of pentanoids, you know, the rest of the
- 2:53Speaker 1: gang when it comes to the seizure medications and even
- 2:56Speaker 1: cardio medications like anti rhythmics and will run things out
- 3:00Speaker 1: with the NMDA antagonists as well. That's that's a lot
- 3:04Speaker 1: of different medications. Hence the laundry list, right, But let's
- 3:08Speaker 1: jump into first a rather rapid review of antidepressants, particularly
- 3:12Speaker 1: for their utilization and pain management. Now you've heard it
- 3:17Speaker 1: here and you've heard it many other places before that.
- 3:19Speaker 1: You know, all medications come with their baggage. We as pharmacists,
- 3:23Speaker 1: we look at how does it work and how much
- 3:25Speaker 1: mechanisms and dosage to lead to safety and efficacy, safety
- 3:29Speaker 1: being those interactions in side effects, right, efficacy pretty straightforward?
- 3:34Speaker 1: Does it work? Right? When you look at indepressants, you know,
- 3:37Speaker 1: the baggage, the risks, we got to you know, take
- 3:39Speaker 1: them into account. Right. There was even black box warnings
- 3:43Speaker 1: like twenty years ago regarding you know, raised suicide concerns
- 3:50Speaker 1: along the way. Okay, particularly with our younger generation, those adolescents,
- 3:56Speaker 1: you know, those less than eighteen years of age. So
- 3:58Speaker 1: there was a black box put on antidepressants. But you know,
- 4:03Speaker 1: did did a black box work or not? Well, there's
- 4:06Speaker 1: a lot of opinions out there, but you know there
- 4:09Speaker 1: was at least once they that actually showed that well. Unfortunately,
- 4:12Speaker 1: those attempts actually increased after the black box warning. You know,
- 4:16Speaker 1: cause and effect. Causation is different than correlation. We got
- 4:19Speaker 1: to watch with that but you know, one of the
- 4:20Speaker 1: bigger picture things when it comes to the baggage overall. Right,
- 4:24Speaker 1: So typically when we're talking antidepressants in pain management, we're
- 4:28Speaker 1: really concentrating on the nor epinephrine effects as far as
- 4:31Speaker 1: witch transmitter. Serotonin certainly comes into play on the psychological
- 4:35Speaker 1: side of pain along with dopamine, but nor a benefron's
- 4:39Speaker 1: really where it's at. So what really gets highlighted is
- 4:41Speaker 1: typically our TCAs, our tricyclic anidepressants, our sn R eyes
- 4:46Speaker 1: you know, selective serotonin or epinephrine reuptake inhibitors, and then
- 4:50Speaker 1: the good old guys of bupropion and are tacitene along
- 4:53Speaker 1: the way as well. So well, let's dive into the
- 4:56Speaker 1: TCAs first. So well, why they called tricyclic cool, They
- 4:59Speaker 1: got three it's pretty much how they are. Keep that
- 5:03Speaker 1: in mind for one of those pesky muscle relaxes later
- 5:06Speaker 1: on in the conversation. But you know, they've all got
- 5:08Speaker 1: the three rings along the way. You can break TCAs
- 5:12Speaker 1: down though, basically into our tertiary and secondary. Okay, so
- 5:18Speaker 1: you know the tertiary are going to have an extra
- 5:21Speaker 1: methyl group on that nitrogen hanging out on the tail there,
- 5:25Speaker 1: the carbon tail on the structures. Okay, that's medkim going
- 5:29Speaker 1: from nerdy to conversational. I guess, okay, the difference though,
- 5:33Speaker 1: you know that that methyl group it changes things, right
- 5:37Speaker 1: Oftentimes when we see a methyl group at it on,
- 5:39Speaker 1: we start talking about LiPo felicity and whether it crosses
- 5:41Speaker 1: a blood brain burrier or not. And let's translate that
- 5:44Speaker 1: for our our you know, patients listening in too. It's basically,
- 5:48Speaker 1: you know, does have more of those sedative properties or
- 5:51Speaker 1: you know CNS effects overall. Right, So the tertiary TCAs
- 5:56Speaker 1: our friends, there is am atripolene docs a PIN, which
- 6:00Speaker 1: by the way is just adding an o t amatriplene,
- 6:02Speaker 1: then imimpromine and clummempromine, which by the way is just
- 6:05Speaker 1: adding a chloride to emimpromine. It's really two base structures
- 6:09Speaker 1: before tertiary TCAs. Overall. Then our secondaries are desipermine, which
- 6:15Speaker 1: is the metabolite of m impromine, and nor triptlene, which
- 6:18Speaker 1: is the metaboloid of amatriplene. We don't tend to see
- 6:22Speaker 1: do zippermine utilization all that much and prescribing and dispensing.
- 6:25Speaker 1: So you know, if you had to remember it one
- 6:27Speaker 1: way you can remember secondary would be the primary one
- 6:29Speaker 1: being or you know, the most popular one of the
- 6:32Speaker 1: secondary TCAs being nor triptlen. Where does that come into
- 6:36Speaker 1: play as far as affecting our patients. For patients and pain,
- 6:41Speaker 1: you know, sometimes we want to help with sleep, Well,
- 6:44Speaker 1: those tertiary TCAs can help with that, you know a
- 6:47Speaker 1: little bit more on the hissminergic and muscarinic side of
- 6:52Speaker 1: things as far as mechanisms, whereas are secondary TCAs highlighted
- 6:57Speaker 1: by nor triplen have less of that. So if there's
- 7:00Speaker 1: concerns for side effects of tiredness with TCAs for a
- 7:03Speaker 1: patient in pain, well nor triplane might be a preferred
- 7:06Speaker 1: answer compared to the tertiary TCAs Along the way, So
- 7:11Speaker 1: a couple of pearls when it comes to TCAs within
- 7:14Speaker 1: pain management compared to say major depressive disorder, there's usually
- 7:19Speaker 1: a faster onset of efficacy and there's usually roughly about
- 7:23Speaker 1: half a dose that's needed compared to depression treatment. Along
- 7:26Speaker 1: the way, Gotta watch when we combine pain management treatments though,
- 7:32Speaker 1: say you have an opioid with the TCA, there's going
- 7:34Speaker 1: to be additive anti cool energic side effects, and there's
- 7:37Speaker 1: even that potential based on protein binding for increased opioid
- 7:42Speaker 1: serum levels, so we got to watch for that along
- 7:45Speaker 1: the way. Yes, even a simple TCA with a simple
- 7:48Speaker 1: prescription opioid can be a concern. Right now, on the
- 7:53Speaker 1: scale of how do these things work, we're usually looking
- 7:56Speaker 1: at the comparison for serotonergic effects compared to nourope effron effects, right,
- 8:02Speaker 1: So nord triplene kind of wins the show as far
- 8:04Speaker 1: as the antidepressant that has more relative norripenefrin effects compared
- 8:10Speaker 1: to Obviously SSRIs would be completely tipping the scale over
- 8:15Speaker 1: to serotonergic effects. But right in the middle of the
- 8:18Speaker 1: gang would generally speaking anyway, would be things like douloxetine
- 8:22Speaker 1: or even amatriplene along the way. So there we're talking
- 8:25Speaker 1: like SNRI compared to TCA, right, So that's a natural
- 8:30Speaker 1: transition here to our SNRIs. There's really not that many folks.
- 8:33Speaker 1: It gets complicated quick for some reason. But you know,
- 8:37Speaker 1: at a core we have duloxetine, venlafaxine, and mil nasa prane. Okay,
- 8:42Speaker 1: Deloxetine is also available in er formulation venlaffexine is also
- 8:46Speaker 1: available in a des venlaffexine isomer formulation along with a
- 8:52Speaker 1: desvenlaffexin er formulation. Mil nasa prane is also available as
- 8:57Speaker 1: its active isomer of levo mil acipran. But when it
- 9:01Speaker 1: all comes down to it, the three cores are duloxetine, venlafaccine,
- 9:06Speaker 1: and mil massapran. Now, as far as things to know,
- 9:09Speaker 1: for duloxatin, it comes up in a lot of different guidelines.
- 9:12Speaker 1: You know, its first FDA approval was all the way
- 9:14Speaker 1: back in two thousand and four for major depression and
- 9:17Speaker 1: diabetic neuropathy, but that's almost ancient history at this point.
- 9:21Speaker 1: Since then, it's also been approved for you know, general
- 9:24Speaker 1: anxiety disorder, fibromyalgia, and even chronic musculus skeletal pain. Hence
- 9:29Speaker 1: we see it within guidelines and utilization overall. Now, for venlafaccine,
- 9:36Speaker 1: some might say vitamin V. You know, it's got different stereoisomers,
- 9:41Speaker 1: hence the different products that are out there. As far
- 9:44Speaker 1: as FDA approvals, the first was back in the nineties
- 9:47Speaker 1: for major depressive disorder. Now a little little pearl when
- 9:50Speaker 1: it comes to venlafaccine is where it hits home folks,
- 9:54Speaker 1: So one hundred and fifty miligrams per day or less
- 9:57Speaker 1: you typically get action of an SSR. If it's more
- 10:02Speaker 1: than one hundred and fifty milligrams per day, you get
- 10:05Speaker 1: some s n R I effects, hence the class. When
- 10:09Speaker 1: the crank the dose higher than three hundred milligrams per day,
- 10:12Speaker 1: which you got to watch with, you started also getting
- 10:14Speaker 1: dopaminergic effects as well too, all right. Next up was
- 10:18Speaker 1: mil nasa pran as far as the three core snries
- 10:23Speaker 1: along the way, so that was approved back in two
- 10:25Speaker 1: thousand and nine for fibromyalgia. So it's you know, been
- 10:28Speaker 1: a while since we've had multiple new novel medications, like
- 10:33Speaker 1: actual different substances for fibromilsia. We've had some recent formulation changes,
- 10:39Speaker 1: but you know, not too much in that accord overall.
- 10:43Speaker 1: Along the way. One of the main things with the
- 10:45Speaker 1: mil nasa pran is that there's no SIP for fifty interactions,
- 10:47Speaker 1: so that comes in handy sometimes. But there is an
- 10:50Speaker 1: interaction with chlanidine because you know that that would be
- 10:54Speaker 1: something of concern overall as well too. All right. Now,
- 10:58Speaker 1: as far as the atypic antipressants, I mentioned two of
- 11:01Speaker 1: them earlier, so well, mertazepine is the first guy, so
- 11:06Speaker 1: since he's got neuroadrenergic and specific serotonergic mechanisms called that
- 11:14Speaker 1: NASA NA so nero adrenergic SS specific serotonin energic and
- 11:20Speaker 1: A for antidepressants NASA if you want to. It's actually
- 11:24Speaker 1: a tetracyclic antipressant. It has one more ring than TCA's.
- 11:29Speaker 1: It's also a histaminergic blocker as well, too, proved back
- 11:32Speaker 1: in the nineties of course for depressive disorder, but now
- 11:34Speaker 1: would be off label within pain. The other atypical andepressant
- 11:38Speaker 1: that we talk about in pain management is bupropion. We
- 11:41Speaker 1: also talk about that in smoking cessation. You get the
- 11:44Speaker 1: classic bogo buy one, get one treatment overall for a
- 11:48Speaker 1: patient endeavoring into smoking cessation that also has pain. But
- 11:51Speaker 1: we have to mention that to our patients, right, But
- 11:55Speaker 1: bupropion is a dopamine and europinephron reuptake inhibitor and a
- 11:59Speaker 1: nicke atene receptor antagonists along the way. It's actually got
- 12:02Speaker 1: a cathinone chemical structure. So some of our bath salts
- 12:06Speaker 1: who knew, right or even amphetamine along the way kind
- 12:09Speaker 1: of sort of without that key tone on it. All right,
- 12:12Speaker 1: So that's the anydepressants folks. But again remember they do
- 12:15Speaker 1: come with their baggage as well. Many would say actually
- 12:19Speaker 1: that you know, when we talk about opioids and gradual tapering,
- 12:23Speaker 1: you know, the end can be actually in sight, right,
- 12:27Speaker 1: But when trying to gradually taper an antidepressant, because of
- 12:30Speaker 1: the change in the number of receptors overall, that might
- 12:36Speaker 1: be impossible even to completely no longer utilize. So it's
- 12:42Speaker 1: you know, even trickier than a gradual opioid tapering. Maybe
- 12:46Speaker 1: the same effort with search and antidepressants along the way.
- 12:50Speaker 1: Some things to keep in mind as well. All right, Now,
- 12:53Speaker 1: within our a juvenant medications, we also have course chlanidine.
- 12:57Speaker 1: You know these days I usually mentioned well, you know,
- 13:02Speaker 1: klanite is an alpha agonist. It's kind of like a
- 13:04Speaker 1: cousin to things like xylazine. You see that in the
- 13:07Speaker 1: headlines these days, you know, being laced into or adulterated
- 13:11Speaker 1: into heroin products or fentanyl products really these days in
- 13:14Speaker 1: the illicit drug supply chain. But it's all about the
- 13:17Speaker 1: alpha in that regard. As far as the pearls with clanidine,
- 13:20Speaker 1: I'll try and keep it simple and straightforward. There's actually
- 13:23Speaker 1: a synergistic effects with when utilized with opioids, the whole
- 13:28Speaker 1: protein binding again comes into play. When clanidine is utilized
- 13:32Speaker 1: with a TCA there is increased blood pressure and additive
- 13:36Speaker 1: sedation as potential concerns as well too. Same thing with
- 13:39Speaker 1: cyco benzopren as well. Because well, let's get onward to
- 13:44Speaker 1: talking about some structures here for our quote unquote muscle relaxance. Right,
- 13:50Speaker 1: let me give you a case. We don't do this
- 13:51Speaker 1: often here on the pain Pod, but let me give
- 13:53Speaker 1: you a case, right, T pain thirty year old male
- 13:56Speaker 1: pharmacist presents this morning to an urgent care clinic with
- 13:59Speaker 1: the chief care chief care complaint of extreme lower back
- 14:02Speaker 1: pain and stiffness hurts like heck. To paraphrase, mister pain
- 14:07Speaker 1: states that is here is back at work while moving
- 14:10Speaker 1: a case of soda yesterday morning. He notified management proceeded
- 14:13Speaker 1: to work an entire fourteen hour shift, which was really
- 14:15Speaker 1: a bad decision on my part, oops, which is the
- 14:19Speaker 1: falling also relaxes if any would be most appropriate for
- 14:22Speaker 1: my treatment back in the day, Yes, folks, this case
- 14:25Speaker 1: is me back in the day, right. Well, a few
- 14:28Speaker 1: pharmacists that actually got hurt on the job. Good golly.
- 14:32Speaker 1: So anyways, getting back to the case, would you recommend
- 14:35Speaker 1: utilization of backlafin curves a prod cycle of benza prene
- 14:39Speaker 1: or methacrd mall Well, technically, folks, even though I was
- 14:43Speaker 1: prescribed to spend cycle benza prene and he even knew
- 14:46Speaker 1: enough to take half a tablet and said the whole thing.
- 14:48Speaker 1: I couldn't tell my fiance at the time my name
- 14:50Speaker 1: over the phone. So yeah, it had some uh sedative
- 14:54Speaker 1: properties to it here, backliffin would be the choice. But
- 14:57Speaker 1: why why out of those selections anyway, Well, when you're
- 15:00Speaker 1: talking about muscle relaxes, it's really it's like Charles Dickens
- 15:03Speaker 1: said in A Tale of Two Cities, it was the
- 15:05Speaker 1: best of times, it was the worst of times. We
- 15:08Speaker 1: have some efficacy. We got worried about safety along the way,
- 15:10Speaker 1: of course, but really it's all about the diagnosis. Is
- 15:14Speaker 1: there spasticity or stiffness or are there spasms with the
- 15:19Speaker 1: muscle or twitching along the way. So spasms, moving, spasticity, stiffness,
- 15:25Speaker 1: that's really the important thing there, right, and we got
- 15:29Speaker 1: to keep that in mind in the big picture. So
- 15:31Speaker 1: you know, as far as spasticity, I kind of alluded
- 15:33Speaker 1: to this with my little case question there myself. But
- 15:38Speaker 1: you know, the spasticity medications or muscle relaxes that would
- 15:42Speaker 1: attempt to help with stiffness would be tizandine, backloffin and
- 15:47Speaker 1: then even gabba pentanoids or benzos or even botulism toxin
- 15:53Speaker 1: or even the actual only peripheral acting muscle relax in dantrolene.
- 15:57Speaker 1: Whereas spasms are typically preferentially treated with the rest of
- 16:01Speaker 1: the gang. There's a pro Dell cycle of benzaprine or
- 16:04Speaker 1: fenadrine met the carbon mook lars oxyzome a tax alone.
- 16:07Speaker 1: I think that's the whole list. There's a lot of them.
- 16:10Speaker 1: I recently heard we want to put xylazine into this
- 16:12Speaker 1: list as well too, because we're like, well, where does
- 16:14Speaker 1: that fit in? Oh, it's a cousin of quantity, and
- 16:16Speaker 1: maybe we should keep it there. Oh, alas we don't
- 16:18Speaker 1: really know, Well, we'll make it a muscle relaxing classification.
- 16:21Speaker 1: Then it seems to be how we roll for decades. Again,
- 16:25Speaker 1: though Dangeline's the actual fun fact, the unactual only perpherally
- 16:29Speaker 1: acting muscle relaxant overall. But when we're talking about spasticity,
- 16:35Speaker 1: you know, it's really medication or pill formulation wise usually
- 16:41Speaker 1: honing into that to zany in and backloffing along the way.
- 16:43Speaker 1: But that brings us really to what I call the
- 16:46Speaker 1: island of misfit medications. You may remember this island from
- 16:50Speaker 1: the Island of Misfit toys from the Rudolph the Red
- 16:53Speaker 1: Noise Reindeer Holidays special. These days with streaming, you could
- 16:57Speaker 1: watch it anytime of the year. But muscle relaxings, they're
- 17:01Speaker 1: basically an island of misfit medications. What do I mean
- 17:04Speaker 1: by that, Well, they're like there're something else under a
- 17:07Speaker 1: disguise of muscle relaxinges. So those spasticity agents tazanity and
- 17:12Speaker 1: it's actually a clanitine analog. Who knew baclafin. It's a
- 17:16Speaker 1: gabba analog literally gaba itself, not gabapenttent, but gaba itself.
- 17:20Speaker 1: So it's that right, it's a gabapentoid. When you look
- 17:24Speaker 1: into those muscle relaxes that are preferential for spasm treatment,
- 17:28Speaker 1: kriiza proto, well that's actually banned in Europe, So there's
- 17:31Speaker 1: that they took it off the market, is what I mean.
- 17:33Speaker 1: But it's it's got an active metabolite that's a barbituit. Well,
- 17:36Speaker 1: what's so out there about that? We have barbituits that
- 17:40Speaker 1: are prescriptions too, right, they're controlled substances, so be it.
- 17:43Speaker 1: But yeah, kruz Aparto is actually the only controlled substance
- 17:46Speaker 1: that's a muscle relaxant. Of course you could say that
- 17:49Speaker 1: backwards as well too, but yeah, we got to watch
- 17:52Speaker 1: with the street perceptions and value of that. Then we
- 17:56Speaker 1: have cycle benza. Pren alude to this twice earlier. It's
- 17:59Speaker 1: actually a TCA. Yeah, cycle benzoprene is an amatripolean analog.
- 18:03Speaker 1: It's a TCA. It has three rings in it, right,
- 18:06Speaker 1: or finagerne, Well, that's a diphen hydrogene analog. So it's
- 18:10Speaker 1: similar OTC medicines, Well, metha carmel and chlorzoxone. They're actually
- 18:14Speaker 1: OTC in Canada. Who knew, right, multiple formulations with other
- 18:19Speaker 1: combination medications in there as well too. You've probably if
- 18:23Speaker 1: you've listened to other paint Pot episodes, you've heard me,
- 18:25Speaker 1: probably heard me pontificate about what's that medication that could
- 18:30Speaker 1: potentially turn your patients, you're in purple. Yeah, chlorosoxyzone. It's
- 18:34Speaker 1: kind of a fun fact, you know, not common, but
- 18:37Speaker 1: definitely something to mention, right that last most relaxing on
- 18:41Speaker 1: the island of misfit medicine's a tax alone. One of
- 18:44Speaker 1: the things I usually mentioned with that as far as
- 18:46Speaker 1: a kind of a pearl. It's just watch for the
- 18:48Speaker 1: diuretic metolisone confusion because you know, if you're pulling down
- 18:53Speaker 1: the e prescribing, they're oftentimes right next to each other
- 18:56Speaker 1: along the way as well too. All right, well, let's
- 19:00Speaker 1: see next up back to bigger picture of jubants. We
- 19:02Speaker 1: got the benzos, so there we're talking, of course, our
- 19:05Speaker 1: zani bars. You gotta watch out with the grape for
- 19:07Speaker 1: interactions for three A, four hoh, the whole gang. Right,
- 19:11Speaker 1: But you know, they're generally classified into long acting, intermediate acting,
- 19:16Speaker 1: and short acting, and many of them have many different
- 19:21Speaker 1: FDA approvals along the way, ranging from anxiety, insomnia, muscle
- 19:25Speaker 1: spasms like we were talking about, seizures of course, alcohol withdrawal,
- 19:29Speaker 1: you name it, you know, just it's very specific to
- 19:33Speaker 1: each one along the way. In the AGS Beers criteria,
- 19:36Speaker 1: the Beers list for the longest time it was. You know,
- 19:39Speaker 1: the recommendation was to avoid the long acting if not
- 19:42Speaker 1: in your intermediate acting. But these days, actually the AGS
- 19:45Speaker 1: beers criteria for older patients sixty five and older, there's
- 19:48Speaker 1: just a recommendation to avoid benzos. But what about when
- 19:51Speaker 1: you need them? Hmm. There's different structural classes of benzos.
- 19:56Speaker 1: But what really you want to kind of drive home
- 19:59Speaker 1: is what makes the ones that are long acting long acting? Well,
- 20:04Speaker 1: the answer is pretty straightforward. Kinetically, they have active metabolites,
- 20:08Speaker 1: so when our body metabolizes them, they become an active metabolite,
- 20:11Speaker 1: which then might become another active metabolid, which might then
- 20:14Speaker 1: become another active metabolite that takes a while, so they're
- 20:16Speaker 1: longer acting. We got to watch with Bendels. Of course,
- 20:21Speaker 1: you know, overuse could lead to respiratory depression with or
- 20:24Speaker 1: without opioid. The other side of the coin, though, well,
- 20:27Speaker 1: rapid taper could lead to seizures, which could be life threatening.
- 20:29Speaker 1: Actual life threatening withdrawal, most would say, unlike opioids, where
- 20:36Speaker 1: they're withdrawal respectively, is very unpleasant like any withdrawal, but
- 20:41Speaker 1: not necessarily directly life threatening along the way, But still
- 20:45Speaker 1: sucks because that's what withdrawal is, right, all right? Next
- 20:49Speaker 1: up in our juven to run down gabapentinoids, so obviously gabapentin,
- 20:54Speaker 1: but also pregabbling and we probably should throw backliffing in
- 20:58Speaker 1: there as well too, right, But you know, gabapenen been
- 21:02Speaker 1: around for decades to prove back in nineteen ninety four.
- 21:06Speaker 1: I actually recently ran a LinkedIn poll and said, hey,
- 21:08Speaker 1: does anybody see gabapat and utilized for seizures these days?
- 21:12Speaker 1: And out of a lot of respondents and views, those
- 21:16Speaker 1: like two people that said yes. So you know that's
- 21:19Speaker 1: where you got to look at the rest of the
- 21:20Speaker 1: people in the room or society say yeah, it's hardly
- 21:23Speaker 1: ever anymore. Right. Gaba pen is one of my poster
- 21:26Speaker 1: kiddos for start logo slow dosing. You never want to
- 21:29Speaker 1: lose the opportunity, particularly within pain management, of starting with
- 21:32Speaker 1: a too high of a dose leading to side effects,
- 21:35Speaker 1: leading to a patient saying I never want to try
- 21:36Speaker 1: that again. MAX dose is recognized as thirty six hundred milligrams.
- 21:42Speaker 1: Primarily comes into play because if it's biolla availability, being
- 21:46Speaker 1: saturated at that point does require renal dosing adjustment, so
- 21:50Speaker 1: that comes into play for a lot of folks as
- 21:51Speaker 1: well too. When you compare gabapt in to pregabling, like,
- 21:56Speaker 1: how do you compare it? So I mentioned gabapentin has
- 21:58Speaker 1: saturable nonlinear in other words, kinetics, So the more that
- 22:04Speaker 1: someone takes, the less percentage that's by all available. So
- 22:07Speaker 1: at you know, thirty six hundred milligrams, it typically plateaus
- 22:10Speaker 1: at that point. Pre gableing you do not have that
- 22:13Speaker 1: it's ninety percent bioavailability regardless to the dosage. And it's
- 22:17Speaker 1: said that the binding affinity of pregable in it is
- 22:19Speaker 1: about six times that of gabapentin, and that has been
- 22:23Speaker 1: inappropriately yet somehow effectively utilized for comparing dosages of gabapentin
- 22:28Speaker 1: to pre gabbling. Basically, just multiply the pregable by six
- 22:32Speaker 1: to get what the gabapentin would be, or divide the
- 22:34Speaker 1: gaba penen by six and get an approximate pregable and dosage. Again,
- 22:38Speaker 1: the pharmacology doesn't really work that way, but it seems
- 22:41Speaker 1: to work out in patient care. Last thing I'll mention
- 22:45Speaker 1: with gabapentin, one of the notable symptoms of withdrawal from gabapentin,
- 22:50Speaker 1: because that's a concern, you know, you want to avoid
- 22:51Speaker 1: seizures with withdrawal would be except the olemea. What the
- 22:55Speaker 1: heck is that eyeballs protruding from the skull? Go figure
- 22:59Speaker 1: that stand out in more times than Halloween. All right,
- 23:03Speaker 1: Who do we have left with our adjuvens medications here
- 23:06Speaker 1: in pay management? You know? The rest of the gang
- 23:08Speaker 1: for the anti epileptic drugs or AEDs, A lot of
- 23:12Speaker 1: you know, there's a lot of them, usually say there's
- 23:15Speaker 1: a first, second, and third generation based on when they
- 23:18Speaker 1: were developed and approved. A lot of times will work
- 23:22Speaker 1: on sodium receptors, so that's part of the electricity. They'll
- 23:26Speaker 1: usually inhibit gabas inhibitions. It's a double negative of perceived
- 23:30Speaker 1: pain and that's where they come into play. But lots
- 23:33Speaker 1: of different side effects, especially with those first generation characters, right,
- 23:38Speaker 1: Lots of different mechanisms overall, though, plethora of them. Lots
- 23:42Speaker 1: of different drug interaction concerns as well too, as far
- 23:45Speaker 1: as ZIP for fifty, there's a lot of enzyme inducers
- 23:48Speaker 1: and inhibitors and an equal amount with zero for SIP
- 23:52Speaker 1: for fifty effects as well too. What about the rest
- 23:55Speaker 1: of the gang one or two left here for our
- 23:57Speaker 1: juvents the anti arrhythmics. This is I think one of
- 24:00Speaker 1: the classic bogos. As I mentioned earlier, buy one, get one,
- 24:05Speaker 1: maybe it should be to go treat one, get one,
- 24:08Speaker 1: where if somebody has a cardiovascular condition and they're on
- 24:10Speaker 1: an anti arrhythmic medication, there's a good chance it might
- 24:14Speaker 1: work on sodium channels, so the electricity of the body,
- 24:16Speaker 1: which could affect the pain of the body. Right, So
- 24:20Speaker 1: if somebody is already utilizing one, then you could have
- 24:23Speaker 1: the conversation and say, hey, that may help with your pain,
- 24:25Speaker 1: and then that might magically help with their pain, right,
- 24:30Speaker 1: because there's a huge psychological side of pain, to say
- 24:33Speaker 1: the least. Overall, All right, then we have finally our
- 24:37Speaker 1: NMDA antagonists, so n methyl d aspiritit an MDA antagonist,
- 24:43Speaker 1: things like methadone obviously that would be with them pain
- 24:46Speaker 1: dextromethor fan just the ODC coff medicine. Ketamine that stands
- 24:50Speaker 1: out even a mantadine. But really ketamine stands out here
- 24:53Speaker 1: as well too. We talked about that in previous episodes
- 24:56Speaker 1: in the overall picture of the pain pod. All right,
- 25:00Speaker 1: So that was our rapid rundown of the adjuvenant pain
- 25:03Speaker 1: management medications. You know, a lot of information when it
- 25:07Speaker 1: comes to the enidepressants, the quote unquote muscle relaxes are
- 25:11Speaker 1: alpha two chlanidine and any of the cousins thereof the benzos,
- 25:15Speaker 1: the gabbas, the seizure medicines, the anti rhythmic medications, and
- 25:19Speaker 1: then the NMDA antagonists as well. So that's the whole
- 25:22Speaker 1: gang that rounds out the opioids, non opioids and adjuvent
- 25:26Speaker 1: therapies for all of our pharmacological options here within pain
- 25:29Speaker 1: management there really are a lot of options, and the
- 25:33Speaker 1: combinations thereof are exponential, right, So if you combine those
- 25:39Speaker 1: three main episodes, really it's probably a couple extras because
- 25:43Speaker 1: we dove deeper into enseids and even you know in
- 25:45Speaker 1: the seedamnif and so on and so forth. But combine
- 25:48Speaker 1: all of those and well that's how we reviewed on
- 25:50Speaker 1: the pain Pod rather succinctly our pain management medication options. So, folks,
- 25:56Speaker 1: I really want to thank you if your time here
- 25:58Speaker 1: today listening in to this rapid rundown of a djuvenant
- 26:03Speaker 1: pain management medications. So yep, in the big picture, it's
- 26:09Speaker 1: hey pain, sad to see you go hate pain. Pod Nation.
- 26:13Speaker 1: Hope to see you back to enjoy much more beyond
- 26:17Speaker 1: this adjuveant pain medication episode of The Pain Pod, but
- 26:22Speaker 1: thank you pain Podnation, and I look forward to our
- 26:25Speaker 1: next episode.
- 26:27Speaker 2: If you'd like to join Mark on the Pain Pod,
- 26:30Speaker 2: send us an email to publish you're at Pharmacy podcast
- 26:33Speaker 2: dot com and make sure to share the show and
- 26:37Speaker 2: subscribe on your favorite podcast directory.
- 26:40Speaker 1: Thanks for listening.